GraphLinkCollection::GetOrCreate Method (String^, String^, String^, GraphCategory^)

 

Attempts to get the link with the specified source, target. If not found, a new link will be created. It also adds the specified category if it is not already defined. It also creates the source and target Node if those are not already defined (and these are created with no category).

Namespace:   Microsoft.VisualStudio.GraphModel
Assembly:  Microsoft.VisualStudio.GraphModel (in Microsoft.VisualStudio.GraphModel.dll)

public:
GraphLink^ GetOrCreate(
	String^ sourceId,
	String^ targetId,
	String^ label,
	GraphCategory^ category
)

Parameters

sourceId
Type: System::String^

source of the link

targetId
Type: System::String^

target of the link

label
Type: System::String^

displayable label of the link

category
Type: Microsoft.VisualStudio.GraphModel::GraphCategory^

link category

Return Value

Type: Microsoft.VisualStudio.GraphModel::GraphLink^

the link that was found or created

Exception Condition
ArgumentNullException

thrown is sourceId or targetId is null or empty string

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